<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="/html-learn/images/new.jpg">
    <style>
        *{
            margin: 0px;
            padding: 0px;
        }
        .center{
            width: 100%;
            height: 750px;
            background: url(images/new.jpg) no-repeat;
            background-size: 100% 750px;
        }
    </style>
</head>    
</body>
<div class="center">
    <form action="" style="text-align: center; line-height: 50px;">
        <label for="yonghuming">&nbsp用户名：</label>
        <input type="password" name="" id="yonghuming" placeholder="请输入用户名">
        <br>
        <label for=“mima”>&nbsp;&nbsp;&nbsp;&nbsp;密码：</label>
        <input type="password" name="" id="mima" placeholder="请输入密码">
        <br>
        <label for=“yanzhengma”>&nbsp验证码：</label>
        <input type="text">
        <br>
        <button>登录</button>
        <button style="margin-left: 30px;">重置</button>
    </form>

</div>
</body>
</html>